Lift-pump.



PATENTED APR. 2, 1907.

P. A. RUHL. LIFT BUMP. APPLIQATION FILED .TUNE 7. 1906.

. FREDERICK A.V RUHL, or. s'rooirroiv, oALrroRNni..

LEFT-PUMPE No. 848,857. Specication of Letters Patent.

Application tiled June 7, 1906. Serial No. 320,556.

.Patented april 2, 1&0?.

ti is the lower or foot valve bearing on the .To L7/Z whom, it mayconcern:

Be it known that I, FREDERICK A. RUHL, a citizen of the United States,and a resident of Stockton, in the county of San Joaquin, State ofCalifornia, have invented Fcertain new and useful Improvements inLift-Puna ps and I do declare the following to be a full, clear, andexact descri tion of the same, such as will enable others skilled 'inthe art to which it appertains to make and use the same, reference beinghad to the accompanying drawings, and the characters of reference markedthereon, which form a part of this specification.

'lhis invention relates to pum s, and parficllllarly to that class knownas ift-pumps, used for deep-well pumping and the like.

The object of the present invention is tol produce a pump or" improvedconstruction and designed more particularly'for use in deep wells andcapable of being readily 4removed for renewal and repairs.'

The device is designed more particularly for that class of pumps havinga tubular plunger and external packing adapted to engage the interior ofthe well-tubing and with an internal valve and with a foot-valve iadapted-to bear upon a seat connected to the lower end of thewell-tubing.

The present invention is designed to facilitate the removal of theplunger with its interiial valve and likewise remove the footvvalve atthe same time that the plunger is removed.

With lthese and other objects in view the invention consists in certainnovel features ot construction, as hereafter shown and described, andspecifically pointed out in the claims.

' ln the drawings similar characters of reference indicate correspondingparts in the several views.

Figure 1 is a sectional view of my device as arranged in the well,showing the plunger in its lowest position. E19; 2 is a similar viewshowing the plunger lnits highest position. Fig. 3 is a sectional view,enlarged, of

the valve and plu'nger portions of the iinproved device detached.

1 designates the casing of the well, and 2 is seat `for the foot-valveat the lower end of the casing.

3 is a spring-cage adapted to be placed just above the valve-seat 2 andis provided with cross-pieces 4 and 5.

seat 2 and pr vided with a stem- 7, extending through the cross-piece 4,said stem 7 being provided at its' upper end with a transverse stop-pin8 to limit the movement of the valve. 4

Q designates the plunger-rod, to the lower end of which is secured-atube 10, around the lower end of which tube is disposed theplunger-packing 11.

13 is a rodsecured in the cross-piece 5 at the lower end and provided atits upper end with a lateral head 14, said rod extending slidablythrough an orifice in a cage 12 depending from the lower end of thepacking member 11.

15 is the upper or plunger valve, seated on the top of tube 10 andinclosed in a cage 16.

ln using the device the cage 12 slips upl and down onl the rod 13, saidrod extending into the tube '10 onthedownward stroke of'the plunger.

Yfhcn it is desired to repair the foot-valve,

er any other part of the mechanism, the

plunger-rod 9v is given quick short jerks, to

release the movableparts andn enable them to be readily withdrawn,theyvall being connected by meansv of the rod 13, with its enlarged head1 4. bearing on. the cage 12, and

the stem 7, with its cross-pin 8, adapted to bear on the cross-piece 4.

The length of the stroke of the plunger the tube 10. and rod'13.

n pumping oil brass balls may be substituted for the form of valvesshown in the drawings.

f Iron pi e, iron tubing, brass tubing, or galvanize -iron pipe can ofcourse be used in conducting the water or oiito the surface of the well.Thus it can be readily seen that I have producedL a pump whereby all themovable parts may be easily removed from the well when it is desired torepair them.

may be regulated by means of the length ofl Having thus described myinvention, whatv l claim as. new and useful, and desire to secure byLetters Patent, is

l. ln a pump, a plunger having an external packing and an internal valve'and with a depending guiding device, a foot-valve structure consistingof spaced transverse members and connecting vertical members spacedapart and extending above and ,below the transvesjsr members, resilientmembers conioo nected respectively to sind spaced vertical members :mdextending outwardly therefrom, :twelve luwingv :L stem slidnhly engagingone el said transverse members, :nid a rod connected to the other elsind transverse members and slidably engaging' sind guiding' device andwith at terminal lateral heed vfor lhearing upon seid guiding devicewhen the plunger is in its elevated pesition.

2. ln a. pump, a foot-valve structure consistingr el" transverse membersund spaced apart and connected hy a, plurzilit)Y of spaced verticalmembers extending above and below the transverse members, resilientmem'hers connected respectively'to said vertical inem- 1 5 saidtransverse members, and n rod connected i r i to the otheref sindtransverse members and adapted to slidablyv engage the plunger of thepump.

ln testimony whereof I infin; r'ny in presence pf two witnesses.

FREDERICK A. RUHL.

si gn tu re Witne sses:

.PERCX S. WEBSTER, JOSHUA B. WEBSTER..

